-When ______ and visit our exhibition next month ?
-When _______ , I will let you know .
| A．will he come ; he will come | B．will he come ; he comes |
| C．does he come ; he will come | D．does he come ; he comes |
34. I can’t thank you ______ much because without your help I ______ have won the first prize.
| A．too; wouldn’t | B．very; shouldn’t | C．that; might not | D．so; couldn’t |
33.The big city has always been the dream career destination of college students. But of late a trend of heading back home ________a part of future job considerations.
| A．has become | B．had become | C．becomes | D．will become |
32. A severe drought over the past months has left 7.5 million people without ________ drinking water in two southwestern Chinese provinces.
| A．frequent | B．private | C．permanent | D．adequate |
31. Stronger and more lasting memories are likely to be formed ________a person is relaxed.
| A．where | B．unless | C．when | D．Although |
30. British scientists said teenagers are programmed to take risks because they enjoy the thrill of dangerous situations________ others.
| A．more than | B．less than | C．other than | D．rather than |